package com.lvlv.eduservice.controller;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.lvlv.servicebase.exceptionhandler.LvException;
import com.lvlv.eduservice.entity.EduTeacher;
import com.lvlv.eduservice.entity.vo.TeacherQuery;
import com.lvlv.eduservice.service.EduTeacherService;
import com.lvlv.unify_utils.Result;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;


import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author 驴驴
 * @since 2025-03-31
 */
@Api(description="讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
public class EduTeacherController {

    //注入service
    @Autowired
    private EduTeacherService eduTeacherService;

    //根据讲师id进行查询
    @ApiOperation(value = "根据讲师ID查询")
    @GetMapping("getTeacher/{id}")
    public Result getTeacher(@PathVariable String id) {
        EduTeacher eduTeacher = eduTeacherService.getById(id);
        return Result.ok().data("teacher",eduTeacher);
    }

    //查询讲师所有数据
    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public Result findAllTeacher() {

        //调用service的方法实现查询所有的操作
        List<EduTeacher> list = eduTeacherService.list(null);
        return Result.ok().data("items", list);
    }

    //分页查询讲师的方法
    //current 当前页
    //limit 每页记录数
    @ApiOperation(value = "分页查询讲师")
    @GetMapping("pageTeacher/{current}/{limit}")
    public Result pageListTeacher(@PathVariable long current,
                             @PathVariable long limit) {
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current, limit);

        try {
            int i = 10/0;
        }catch(Exception e) {
            //执行自定义异常
            throw new LvException(201,"执行了自定义异常处理....");
        }

        //调用方法实现分页
        //调用方法时底层封装，将分页所有数据封装到pageTeacher对象里面
        eduTeacherService.page(pageTeacher, null);

        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合

        return Result.ok().data("total", total).data("rows", records);

    }

    //条件查询带分页的方法到pageTeacher对象里面
    @ApiOperation(value = "条件查询讲师分页")
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public Result pageTeacherCondition(@PathVariable long current,
                                       @PathVariable long limit,
                                       @RequestBody(required = false) TeacherQuery teacherQuery) {
                                        //参数值可以为空

        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);

        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();

        // 多条件组合查询
        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();

        //判断条件值是否为空，如果不为空拼接条件
        if(!StringUtils.isEmpty(name)) {
            //构建条件
            wrapper.like("name",name);
        }
        if(!StringUtils.isEmpty(level)) {
            wrapper.eq("level",level);
        }
        if(!StringUtils.isEmpty(begin)) {
            wrapper.ge("gmt_create",begin);
        }
        if(!StringUtils.isEmpty(end)) {
            wrapper.le("gmt_create",end);
        }

        //排序
        wrapper.orderByDesc("gmt_create");

        //调用方法实现条件查询分页
        eduTeacherService.page(pageTeacher, wrapper);
        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords();//数据list集合

        return Result.ok().data("total", total).data("rows", records);

    }

    //逻辑删除讲师的方法
    @ApiOperation(value = "根据ID删除讲师")
    @DeleteMapping("{id}")
    public Result deleteTeacher(
            @ApiParam(name = "id", value = "讲师ID", required = true)
            @PathVariable String id) {

        boolean flag = eduTeacherService.removeById(id);
        if(flag) {
            return Result.ok();
        } else {
            return Result.error();
        }

    }

    //添加讲师接口的方法
    @ApiOperation(value = "添加讲师")
    @PostMapping("addTeacher")
    public Result addTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean save = eduTeacherService.save(eduTeacher);
        if(save) {
            return Result.ok();
        } else {
            return Result.error();
        }
    }

    //讲师修改功能
    @ApiOperation(value = "修改讲师")
    @PostMapping("updateTeacher")
    public Result updateTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean flag = eduTeacherService.updateById(eduTeacher);
        if(flag) {
            return Result.ok();
        } else {
            return Result.error();
        }
    }

}

